burn_blocked_tokens

THE RISK

Critical Risk

Why burn_blocked_tokens needs a policy

Burning tokens permanently destroys them with no possibility of recovery. Combined with the financial nature of the stablecoin context and the fact that this operates on a blocked address's holdings, misuse could result in irreversible loss of real monetary value.

From the tool's definition 'Burn tokens held by a blocked address (compliance seizure)' — burning tokens is an irreversible destruction of financial assets

Documented attack patterns abuse exactly the kind of access burn_blocked_tokens gives an agent:

POLICY

How to control burn_blocked_tokens

PolicyLayer is an MCP gateway — it sits between your AI agents and Tempo, and nothing reaches the server without passing your rules. This is the rule we recommend for burn_blocked_tokens:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "burn_blocked_tokens"
  ]
}

burn_blocked_tokens disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Tempo — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

Govern database agents → Read-only defaults, blocked table drops, and no DELETE without a WHERE clause on every query.
Critical-risk tools in Tempo → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about burn_blocked_tokens

What does the burn_blocked_tokens tool do? +

Burn tokens held by a blocked address (compliance seizure). It is categorised as a Destructive tool in the Tempo MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on burn_blocked_tokens? +

Register the Tempo MCP server in PolicyLayer and add a rule for burn_blocked_tokens: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Tempo. Nothing to install.

What risk level is burn_blocked_tokens? +

burn_blocked_tokens is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit burn_blocked_tokens? +

Yes. Add a rate_limit block to the burn_blocked_tokens rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block burn_blocked_tokens completely? +

Set action: deny in the PolicyLayer policy for burn_blocked_tokens. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides burn_blocked_tokens? +

burn_blocked_tokens is provided by the Tempo MCP server (arome3/tempo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Tempo tool call.

Start from Tempo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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